PART 2: FROM CLASSROOM TO CAREER AND BEYOND Part 1 in the Spring issue of NETA World provided a retrospective on the implementation of the NETA Electrical Power Testing Technician (EPTT) curriculum at Long Beach City College (LBCC). That story is important, but it is only half of it. The real measure of success is what happens after students leave …

Transformer Turns Ratio (TTR) testing is a fundamental diagnostic method used to verify transformer winding integrity, tap-changer position, and compliance with nameplate data by comparing measured voltage ratios with theoretical values. This test enables early detection of winding deformation, incorrect internal connections, manufacturing defects, or tap-changer issues. However, when applied to rectifier transformers, complexity increases significantly due to multiple secondary …